Home / 109,720.40-164,467.20-59,694.80

Finding the Fourth Proportional to 109,720.40, 164,467.20 and 59,694.80

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Solution

The fourth proportional to 109,720.40, 164,467.20 and 59,694.80 is: 89,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,720.40 : 164,467.20 = 59,694.80 : x
  2. Step 2: Convert to fraction form
    109,720.40/164,467.20 = 59,694.80/x
  3. Step 3: Cross multiply
    109,720.40x = 164,467.20 × 59,694.80
  4. Step 4: Simplify right side
    109,720.40x = 9,817,836,610.56
  5. Step 5: Solve for x
    x = 9,817,836,610.56/109,720.40
  6. Step 6: Final answer
    x = 89,480.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.